<?php
/** @var TareaController $this */
/** @var Tarea $model */
/** @var AweActiveForm $form */
Yii::app()->clientScript->scriptMap['jquery.js'] = false;
?>

    
<div id="miModal" class="modal hide fade">
    <div class="modal-header">
        <button class="close" data-dismiss="modal">&times;</button>
        <h3>Mensaje modal</h3>
    </div>
    <div class="modal-body">
        <p>Contenido del mensaje...</p>
    </div>
    <div class="modal-footer">
        <button class="btn" data-dismiss="modal">Cerrar</button>
    </div>
</div>
<button id="a" class="btn btn-primary" data-toggle="modal" data-target="#miModal">
    Modal
</button>